Home / 710,134,566-980,015,966.26-396,868,770.76

Finding the Fourth Proportional to 710,134,566, 980,015,966.26 and 396,868,770.76

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Solution

The fourth proportional to 710,134,566, 980,015,966.26 and 396,868,770.76 is: 547,695,817.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,134,566 : 980,015,966.26 = 396,868,770.76 : x
  2. Step 2: Convert to fraction form
    710,134,566/980,015,966.26 = 396,868,770.76/x
  3. Step 3: Cross multiply
    710,134,566x = 980,015,966.26 × 396,868,770.76
  4. Step 4: Simplify right side
    710,134,566x = 388,937,731,854,779,840
  5. Step 5: Solve for x
    x = 388,937,731,854,779,840/710,134,566
  6. Step 6: Final answer
    x = 547,695,817.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.